I have been flying my DJI Mavic Pro drone all over New Mexico making dozens of 4K videos.  But what to do about places the drone cannot fly?  Or if I wanted to actually record the sound of the place I am recording video of?  The iPhone 8 records good 4K video, but if you just handhold it the video is all choppy.  In my search for a smooth solution, I discovered the DJI Osmo Mobile 2 smart phone gimbal.  However, it was sold out everywhere.  Finally it was back in stock and mine arrived just last week!